






🎸 Level up your luthier game with precision-crafted dual-radius power!
The Guyker Two-Way Radius Sanding Block is a CNC machined aluminum tool designed for professional guitar and bass fretboard leveling and maintenance. Featuring two radii (10" and 14") on a single block, it offers versatile, precise fretboard shaping with an ergonomic grip for comfort. Durable and resistant to deformation, this sanding block is a must-have for luthiers and serious DIY musicians aiming for flawless fretwork.




| ASIN | B08GYQR39G |
| Best Sellers Rank | 106,936 in DIY & Tools ( See Top 100 in DIY & Tools ) 131 in Sanding Blocks |
| Body Material | Aluminium |
| Customer Reviews | 4.6 4.6 out of 5 stars (274) |
| Date First Available | 1 Sept. 2020 |
| Item Weight | 531 g |
| Item model number | fingerboard radius sanding blocks |
| Material Type | aluminum |
| Package Dimensions | 20.6 x 7.8 x 3.1 cm; 531 g |
| Proficiency Level | Professional |
| Size | 1 Piece, Radius 10” + 14” |
L**G
Works well
Handy mid size beam, no issues so far
B**S
Well made
Nicely cast did the job
A**Y
Great bit of kit
All good here
M**G
Will do
Apart from the lacking QC reported by other customers as well, thus having a ding on one of the edges, it looks like a decent piece of kit although overpriced for what ot is. It's a very small market for such tools, so hence the higher prices. Make sure you order the twice longer equivalent so it covers most of the fretboard for the bulk of the work. This short version should be used only for touch ups! You are welcome.
E**I
I will probably get a wooden block
If the edges were rounded, it would be perfect. It hits and leaves a mark if one of the frets is higher. It still does the job, but I will be looking for a better option.
F**W
70mm wide not 72.7mm
Most people won't be too bothered by 2.7mm difference between the described width and the actual width of this tool. But in my case I needed it for a 5 string bass with a 72mm fingerboard width. Tool looks reasonable for the price, although there were some burrs still left on the cut ends of the tool which the manufacturer really should have deburred before packing. Returned for a refund.
R**T
Me gustó la calidad y es bastante preciso.
B**I
HIGH QUALITY
D**A
i must say, i'm quite impressed with this block. as i primarily use either philadelphia luthier tools, or stewmac items, i'm impressed with the precision of this block. of note, there are key features which are worthy of reviewing. 1. substantial weight- the weight of this item allows for accurate movement when utilizing/leveling. it's noticeable as soon as you receive the item (as i was immediately impressed before opening the amazon packaging..with the weight, in and of itself). 2. thick, heavy duty aluminum- this block has heft, which, then allows for a smoother action when stroking the fretboard, or tops of frets for leveling purposes. this is a useful feature. 3. comfort on the hand(s)- as the aluminum is of high quality, the comfort in holding/handling provides for a more accurate completion/job. as i primarily play ESP, or LTD guitars, the majority are either 12", or 14" radius. and, although i'm not an actual schooled luthier, i prefer working on my instruments myself (such as pickup installations/i use EMG exlusively, hardware upgrades, minor routing, nut replacement). as i have leveled and crowned 3 necks/fretboards, i'm comfortable performing fret leveling...whether being spot leveling and crowning, or full-on fretboard frets in their entirety. as such, this block is ideal. especially once you're comfortable with leveling/crowning (even at a beginner, or amateur level). i bought two sets of guyker tuners (in the past), and, although they are not what i nearly exclusively use (gotoh), i am impressed with the quality of the tuners, as well. therefore, it was an easy decision to purchase this sanding block. this is an excellent tool, and i have many necks that just need a "touch-up." in combination with my hosco files, and a handful of Sharpies (ha), this tool will save time, and provide precise outcomes.
F**R
Parfait
A**N
These things are well built with heavy aluminum and do a very good job of radiusing a fretboard. I tried another cheaper brand that was chintzy by comparison and sent it back to buy a Guyker. I have lots of StewMac tools, and all of them have been great, but for much less money these Guyker radius blocks appear to be fairly comparable.
Trustpilot
3 days ago
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